Correcting After Abnormal Completion Of The Test Run; To Perform A Bs/Indoor Unit Connection Check - Daikin VRV 5 REYA8A7Y1B Installer And User Manual

22.7 Correcting after abnormal completion of the test run

22.8 To perform a BS/indoor unit connection check

REMA5+REYA8~20A7Y1B
VRV 5 heat recovery
4P687640-1 – 2022.07
Step
INFORMATION
During the test operation, it is not possible to stop the unit operation from a user
interface. To abort the operation, press BS3. The unit will stop after ±30 seconds.
5 Check the test operation results on the outdoor unit 7‑segment display.
Completion
Normal completion
Abnormal completion
The test operation is only completed if there is no malfunction code displayed on
the user interface or outdoor unit 7‑segment display. In case of a displayed
malfunction code, perform correcting actions as explained in the malfunction code
table. Carry out the test operation again and confirm that the abnormality is
properly corrected.
INFORMATION
Refer to the installation manual of the indoor unit for detailed malfunction codes
related to indoor units.
This optional test run can be performed to confirm if wiring and piping connections
between indoor units and BS units are matching. Operation range for the indoor
units is 20~27°C and for the outdoor units this is –5~43°C.
1 Close all front panels in order to not let it be the cause of misjudgement
(except the electrical component box inspection opening service cover).
2 Make sure the test run is fully completed without malfunction code (see
"22.6 To perform a test
Description
Communication check
Stop valve check
Pipe length check
Refrigerant amount check
Pump down operation
Unit stop
Description
No indication on the 7‑segment display (idle).
Indication of malfunction code on the 7‑segment display.
Refer to "22.7 Correcting after abnormal completion of
4
the test run" [ 153] to take actions for correcting the
abnormality. When the test operation is fully completed,
normal operation will be possible after 5 minutes.
4
run" [ 152]).
22 Commissioning
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Installer and user reference guide
153